Frist Jr.'s brother, Bill Frist, was the U.S. Senate majority leader from 2003 to 2007, while George W. Bush was president.
Through the Frist Foundation, Frist Jr. and his family played an integral role in creating Nashville's Frist Art Museum, where he serves as Director Emeritus.
Thomas Frist Jr., a former Air Force flight surgeon, founded Hospital Corp. of America with his father in 1968.
He took it public for the third time in 2011 after two management buyouts and owns over 20% of the company with his family.
HCA Healthcare owns and operates 182 hospitals and around 2,300 sites of care in 20 states in the U.S. and U.K.
Frist Jr. doesn't have an executive position at HCA, but his sons, Thomas Frist III and William Frist, are board members.